DL-Ornithine monohydrochloride is widely used in the pharmaceutical and health supplement industries due to its role in the urea cycle and amino acid metabolism. It is commonly incorporated into dietary supplements aimed at supporting liver health, detoxification, and athletic performance. The compound helps in reducing ammonia levels in the body, making it beneficial for individuals with liver disorders or those experiencing high ammonia buildup due to intense physical activity. Additionally, it is used in research settings to study metabolic pathways and as a precursor in the synthesis of other bioactive compounds. Its application extends to skincare products, where it is valued for its potential to promote collagen production and skin repair.